问题
选择题
It is not easy to describe a policeman’s job. After all, a policeman has a number of jobs in ______.
A．it
B．one
C．his
D．that
答案
答案：B
考查代词：用it的话是直接指代policeman，而用one是用来强调policeman作为一份工作，相当于one job。句意：很难描述警察的工作，毕竟一个警察一份工作里面有很多事。选B。